51827130 has 24 divisors (see below), whose sum is σ = 134750772. Its totient is φ = 13820544.

The previous prime is 51827129. The next prime is 51827131. The reversal of 51827130 is 3172815.

It is an interprime number because it is at equal distance from previous prime (51827129) and next prime (51827131).

It can be written as a sum of positive squares in 2 ways, for example, as 45522009 + 6305121 = 6747^2 + 2511^2 .

It is a junction number, because it is equal to n+sod(n) for n = 51827094 and 51827103.

It is not an unprimeable number, because it can be changed into a prime (51827131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 287839 + ... + 288018.

Almost surely, 2^51827130 is an apocalyptic number.

51827130 is an abundant number, since it is smaller than the sum of its proper divisors (82923642).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51827130 is a wasteful number, since it uses less digits than its factorization.

51827130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575870 (or 575867 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 51827130 is about 7199.1061945217. The cubic root of 51827130 is about 372.8370416156.

Adding to 51827130 its reverse (3172815), we get a palindrome (54999945).

The spelling of 51827130 in words is "fifty-one million, eight hundred twenty-seven thousand, one hundred thirty".